METHOD FOR PRODUCING (4S)-4-[4-CYANO-2-(METHYLSULFONYL)PHENYL]-3,6-DIMETHYL-2-OXO-1-[3-(TRIFLUOROMETHYL)PHENYL]-1,2,3,4-TETRAHYDRO PYRIMIDINE-5-CARBONITRILE
申请人:BAYER PHARMA AKTIENGESELLSCHAFT
公开号:US20180072685A1
公开(公告)日:2018-03-15
The present invention concerns a new and improved method for preparation of (4S)-4-[4-cyano-2-(methylsulfonyl)phenyl]-3,6-dimethyl-2-oxo-1-[3-(trifluormethyl)phenyl]-1,2,3,4-tetrahydro pyrimidine-5-carbonitrile of formula (I), as well as the preparation and use of the crystal form (A) of (4S)-4-[4-cyano-2-(methylsulfonyl)phenyl]-3,6-dimethyl-2-oxo-1-[3-(trifluormethyl)phenyl]-1,2,3,4-tetrahydro pyrimidine-5-carbonitrile of formula (I).
本发明涉及一种用于制备式(I)的(4S)-4-[4-氰基-2-(甲磺基)苯基]-3,6-二甲基-2-氧代-1-[3-(三氟甲基)苯基]-1,2,3,4-四氢嘧啶-5-碳腈的新型改进方法,以及制备和使用式(I)的(4S)-4-[4-氰基-2-(甲磺基)苯基]-3,6-二甲基-2-氧代-1-[3-(三氟甲基)苯基]-1,2,3,4-四氢嘧啶-5-碳腈的晶型(A)。